On predictions and laws in biological evolution: Is biology able to formulate general laws and develop inductive predictions as in physics or chemistry?: Is biology able to formulate general laws and develop inductive predictions as in physics or chemistry? [PDF]
EMBO Rep, 2022 Rull V.
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Monthly Notices of the Royal Astronomical Society, 1991 It is suggested that the outburst suffered by Comet Halley (1986 III) in early 1991 February, was caused by the ejection from the nucleus of 1.4 × 10 13 g of dust, this being about 0.02 per cent of the cometary mass. The energy required was in the range 2 × 10 19 to 2 × 10 23 erg.
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Opportunities for ballistic missions to Halley's comet [PDF]
Alternative strategies for ballistic missions to Halley's comet in 1985-86 are described. It is shown that a large science return would be acquired from a ballistic Halley intercept in spite of the high flyby speeds of almost 60 km/sec that are ...
Farquhar, R. W., Wooden, W. H., II
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Scientific rationale and strategies for a first comet mission. Report of the Comet Halley science working group. An executive summary [PDF]
The justification, scientific objectives, instrumentation, and strategy for a first comet mission are discussed. Topics include: mission target; rendezous, propulsion system requirements, measurement objectives, instrument capabilities for rendezvous ...
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Edmond Halley's Contributions to Hydrogeology. [PDF]
Ground Water, 2021 Deming D.
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Coordinated programs for comet Halley [PDF]
Symposium - International Astronomical Union, 1986 Because comets are so difficult to observe, it is essential to coordinate observations from a variety of telescopes in order to fully understand their behavior. The apparition of Comet Halley represents a unique opportunity for coordinated programs because this is the only predictable comet which is routinely bright enough for the many observational ...
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On LAM's and SAM's for Halley's rotation [PDF]
Non principal axis rotation for comet Halley is inferred from dual periodicities evident in the observations. The modes where the spin axis precesses around the axis of minimum moment of inertia (long axis mode or LAM) and where it precesses around the ...
Peale, Stanton J.
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Designing dual-plate meteoroid shields: A new analysis [PDF]
Physics governing ultrahigh velocity impacts onto dual-plate meteor armor is discussed. Meteoroid shield design methodologies are considered: failure mechanisms, qualitative features of effective meteoroid shield designs, evaluating/processing meteoroid ...
Bamford, R., Chen, R., Swift, H. F.
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The Perturbations of Halley's Comet in the Past. Third Paper. The Period from 1066 to 1301 [PDF]
, 1908 P. H. Cowell, A. C. D. Crommelin
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Comet Halley returns: A teachers' guide 1985-1986 [PDF]
This booklet has been put together as an aid for teachers in elementary and secondary schools. It is divided into two distinct parts. The first part is a brief tutorial which introduces some of the most important concepts about comets, including their ...
Bondurant, R. L., Chapman, R. D.
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